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aksik [14]
3 years ago
6

Driving a piling into a harbor bottom, a pile driver sinks the piling 24 inches on the first stroke, 18 inches on the second str

oke, and 13 1/2 inches on the third stroke. If the sequence is continued, how far will the piling be driven down on the 5th stroke?
Mathematics
1 answer:
ira [324]3 years ago
6 0

Answer:

7.6 inches to the nearest tenth.

Step-by-step explanation:

18/24 = 3/4.

13.5 / 18 = 3/4.

This is a Geometric sequence with common ratio 3/4 or 0.75.

We need to find the fifth term of the sequence.

5th term = a1 (r)^(5 - 1)

=  24 * (0.75)^(5-1)

= 24 *  0.316406

=  7.6 inches.

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lesya [120]

Answer:

120 m squared

Step-by-step explanation:

Volume problems are very simple:

Just multiply the base x height x length

So 10 x 2 x 6, which is 120.

Therefore, the volume of this shape is 120 m squared.

3 0
3 years ago
Read 2 more answers
Please help me!! Will give first and correct answer brainliest!!!
velikii [3]
15 centimeters? ;)))))
5 0
4 years ago
when the sum of an unknown number z and twenty-two is divided by the same unknown number, the quotient is twelve.
Kipish [7]

z = 2

'Answer:

Step-by-step explanation:

z + 22

---------- = 12

    z

Multiplying both sides by z results in

z + 22 = 12z

Combining the z terms, we get 22 = 11z, which yields z = 2.

3 0
3 years ago
PLEASE HELP PLEASE PLEASE PLEASE
Nookie1986 [14]

Answer:

33

Step-by-step explanation:

The product of the secant segment lengths is a constant.

... TC×CV = UC×CW

... 14(2x+2) = 12(2x+5) . . . . substitute the values from the diagram

... 28x +28 = 24x +60 . . . . eliminate parentheses

... 4x = 32 . . . . . . . . . . . . . . add -28-24x

... x = 8 . . . . . . . . . . . . . . . . divide by 4

UW = 12 + 2x + 5 = 17+2·8 . . . . UW = UC + CW

UW = 33

3 0
3 years ago
I. The temperature is -3º. An hour later, it drops 6º and 2 hours later,
sineoko [7]

Answer:

-3 - 6 = -9

-9 + 4 = -5

Step-by-step explanation:

6 0
4 years ago
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